
.middle > div {
    border: 1px solid red;
}

.middle > div > div:first-child {
    color: orange;
    font-size: 30px;
    padding: 10px;
    border-bottom: 1px solid red;
}

.middle > div > div:nth-child(2) {
    display: flex;
    justify-content: center;
}

.middle > div > div:nth-child(2) > div:first-child {
    margin: 50px 0 20px;
}

.middle > div > div:nth-child(2) > div:first-child > div:first-child > div:first-child {
    display: flex;
    justify-content: center;
}

.middle > div > div:nth-child(2) > div:first-child > div:first-child > div:first-child > div:nth-child(1) {
    color: orange;
}

.middle > div > div:nth-child(2) > div:first-child > div:first-child > div:first-child > div:nth-child(2) {
    color: gray;
}

/*留言*/
.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) > div {
    width: 600px;
}

.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) > div > div > div:nth-child(2) {
    height: 30px;
    border: 1px dashed blue;
    background-color: rgb(238, 238, 238);
    padding: 0 10px;
    line-height: 30px;
}

.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) > div > div:nth-child(3) > div:nth-child(2) {
    height: 200px;
}

.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) > div > div:last-child {
    display: flex;
    justify-content: center;
}

.middle > div > div:nth-child(2) > div:first-child > div:nth-child(2) > div > div:last-child > div {
    background-color: orange;
    color: white;
    width: 200px;
    text-align: center;
    margin: 20px 0;
    border-radius: 30px;
}